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60 insane cloud formations from around the world [PICs]

"Asperatus formation, Canterbury, New Zealand."

Cloud spiral in the sky. An Iridescent (Rainbow) Cloud in Himalaya. The phenomenon was observed early morning on October 18, 2009

Punch Hole Clouds may appear as a circular or oval holes in a layer of supercooled clouds. Sometimes they assume a form of a perfect circle and persist for quite a long time, drifting together with the cloud layer. One explanation seems to blame the air traffic (the jet contrail intersections) combined with a thermal inversion (a circular motion of a rising warm air). (Image credit Joel Knain)

from Telegraph.co.uk

Weather pictures of the year 2011: lightning, auroras, snow and ice

My dad taught me about these when I was a child. From previous pinner: Not every cloud has a silver lining; this multi-coloured cloud looks as if a rainbow has formed high in the heavens. The phenomenom - called a sundog - happens when ice crystals appear in clouds and refract the sun's rays. Photographer Robert Arn captured the cloud in Heyworth, Illinois, America. Picture: Robert Arn/solent